Articles

Raspberry Pi Pygame UI basics - this tutorial guides you through using pygame to create user interfaces for the PiTFT from Adafruit. It shows how to interact with GPIOs and I2C finishing up with a nice progress bar style widget for an analog input.

Raspberry Pi parking camera with distance sensor - a parking camera with distance sensor. The feed from the webcam is shown on the LCD with a distance read-out underneath. As you get closer to the object (my hand in the videos) a circle is overlaid on the video which gets larger as you move closer. Once you get to within 30cm of the object the word "STOP" is overlaid and everything turns red. This post was featured on HackADay, LifeHacker and many other blogs.

Raspberry Pi midi driven solenoid bell - Uses a cheap USB/midi cable connected between a Roland TD9 v-drum kit and a Raspberry Pi. The Midi is decoded so whenever the snare drum is hit a GPIO fires to ring the bell using a solenoid. A little bit of fun.

Control My Pi - Easy web remote control for your Raspberry Pi projects - In just a few lines of Python code you can create a control panel for your project accessible over the Internet. No firewall changes to make, no web servers to set up. Pick up your Raspberry Pi, take it to a friends house or work, school, a club, a coffee shop - connect it to 3G and carry it around or put it in your car - it doesn't matter where it is or what network you're on you'll be able to access your control panel on Control My Pi.

Raspberry Pi solenoid alarm bell - Controlling components on a separate power supply from the Raspberry Pi. This project uses a PIR sensor, an IR range sensor, a solenoid, a reception bell and some bright LEDs to form a proximity alarm system.

Raspberry Pi GPIO and Motion - take a snapshot from a button push and indicate detected motion and other events on LEDs. Introduces the Python code service to make it easy to flash, switch on/off and single pulse LEDs from the command line and to hook shell commands to button pushes.